Passion Health Primary Care Blog How to Prevent Colon Cancer: Why Screening Matters Even If You Feel Fine

How to Prevent Colon Cancer: Why Screening Matters Even If You Feel Fine

Medically reviewed by Dr. Anantha Chentha, MD, FACP, CHCQM-PHY ADV Internal Medicine

Key Takeaways

  • Getting screened on time and building healthier habits can help lower your risk.
  • A clinician can remove many precancerous polyps during a colonoscopy.
  • Routine screening starts at 45 for adults at average risk who have no symptoms.
  • Family history and past polyps can change your screening schedule.
  • Screening options include colonoscopy and at-home stool tests.
  • An abnormal stool test requires a follow-up colonoscopy.

You can feel perfectly healthy and still have a colon polyp. Some polyps grow for years without causing symptoms. 

That’s one reason why knowing how to prevent colon cancer starts with knowing when you’re due for screening. Staying active, avoiding tobacco, and limiting alcohol can also help lower your risk. 

Screening adds another layer of protection because it can find precancerous growths before they become cancer. 

PERSONALIZED HEALTH EVALUATION Turning 45 or unsure when you last had a screening test? Ask when you’re due at a Passion Health primary care visit.

Can Colon Cancer Be Prevented?

Yes, screening can help prevent some cases of colon cancer. A polyp is a growth on the inner lining of the colon or rectum. Some polyps can turn into cancer over time. During a colonoscopy, a clinician can find and remove many of these growths. Screening can also find colorectal cancer early, when treatment usually works best. [www.cdc.gov]

When you look up how to prevent colon cancer, you’ll find advice about both screening and daily habits. They serve different purposes. Screening can find a growth that’s already there. Regular movement, avoiding tobacco, and limiting alcohol can help lower your risk over time. 

What Are the Main Colon Cancer Risk Factors?

Age, a family history of colorectal cancer, and a personal history of certain colon polyps can affect your risk. So can inflammatory bowel disease, such as Crohn’s disease or ulcerative colitis, and inherited conditions such as Lynch syndrome. Factors you can act on include physical inactivity, tobacco use, and alcohol use. 

If cancer runs in your family, ask which relative had it and how old they were at diagnosis. If you’ve had a colonoscopy, look for the report or bring the name of the practice that performed it. 

The type of polyp and the date of your last test can help your provider decide when you need another exam. Even a few details give you a place to start. 

When Should You Start Colon Cancer Screening?

U.S. Preventive Services Task Force guidelines recommend routine colorectal cancer screening from ages 45 through 75 for adults at average risk who have no symptoms. From ages 76 through 85, the decision depends on your health, prior screening, and preferences.

If you have a family history or another risk factor, ask your provider whether you need to start earlier or follow a different schedule. 

If you notice blood in your stool or a lasting change in your bowel habits, contact your healthcare provider. Tell them what changed and when it started. Screening checks for disease before symptoms appear. When you have symptoms, your provider can decide which tests may help find the cause. 

What Are the Options for Colon Cancer Screening?

Colonoscopy lets a clinician look inside the colon and remove many polyps during the same procedure. Ask what the bowel prep involves, how much time to set aside, and whether you’ll need a ride home. 

At-home stool tests offer another option for many adults at average risk. A fecal immunochemical test, or FIT, checks for hidden blood in a stool sample. Some stool tests also look for certain DNA changes. 

You’ll need to repeat the test on its recommended schedule. An abnormal result requires a follow-up colonoscopy. Before choosing a test, ask how you’ll get your results and who will help arrange follow-up if you need it. 

PRIMARY CARE HEALTH EVALUATION Have a family history or an overdue screening? Book a primary care visit with Passion Health to talk through your options.
Book an Appointment

What Everyday Habits Can Help Lower Your Risk?

If you’re wondering how to prevent colon cancer through daily habits, start with a change that fits your week. Regular physical activity, maintaining a healthy weight, avoiding tobacco, and limiting alcohol can help lower your risk. 

Move more often. Try a short walk after lunch or dinner on days when you can fit it in. Choose a time you can keep even on a busy week.

  • Work toward a healthy weight. If you want support, ask your primary care provider about a realistic first step based on your health and routine.

  • Get help quitting tobacco. Tell your provider when you tend to reach for tobacco and what you’ve tried before. That gives you something specific to work on together.

  • Drink less alcohol. Start with an alcohol-free evening or replace a usual drink with an option you enjoy.

How Can Passion Health Help You Lower Your Colon Cancer Risk?

A Passion Health Advanced primary care provider can help turn general screening guidelines into a plan that fits your history. Bring any past results you have and share what you know about colorectal cancer or polyps in your family. 

Your provider can help you work out whether you’re due for screening, discuss which options may suit you, and explain what happens after the test.

If the prep, time off work, or getting a ride has held you back, say so during the visit. A practical question to bring is “Given my history and schedule, which test makes sense for me, and what do I need to do next?”

Final Takeaway

If you’re wondering how to prevent colon cancer, start by finding out when you’re due for screening. 

Screening can find precancerous polyps before they cause symptoms, and a clinician can remove many of them during a colonoscopy. 

Routine screening begins at age 45 for adults at average risk. If colon cancer runs in your family or you’ve had polyps before, ask whether you need a different schedule. 

Staying active, avoiding tobacco, and limiting alcohol can also help lower your risk.

Book a primary care visit with Passion Health to review your risk and find out which screening option fits your health history.

Book a Passion Health primary care visit

to find out when you’re due for colon cancer screening

Frequently Asked Questions

1. Can colon cancer screening help prevent cancer?

Yes. Screening can find precancerous polyps, and a clinician can remove many of them during a colonoscopy before they develop into cancer.

2. Do I need colon cancer screening if I feel healthy?

Yes, if you’re due. Polyps can grow without symptoms. Screening looks for changes before you notice a problem. 

3. Should I start before age 45 if colon cancer runs in my family?

You may need to start earlier. Tell your provider which relative had colorectal cancer and their age at diagnosis so you can discuss a screening schedule. 

4. Can I use an at-home stool test for colon cancer screening?

Many adults at average risk can use an at-home stool test. Ask your provider which test fits your history and how often to repeat it. 

5. What happens if my at-home stool test is abnormal?

Contact your provider to arrange a follow-up colonoscopy. The colonoscopy helps your clinician find the cause of the abnormal result. 

Knowing how to prevent colon cancer starts with one practical question: Am I due for screening? Review your risk and make a plan at a Passion Health primary care visit.

Dr. Anantha Chentha, internal medicine physician
Physician Author

About the Author

Dr. Anantha Chentha
MD, FACP, CHCQM-PHY ADV | Internal Medicine

Dr. Anantha Chentha is a board-certified internal medicine physician with extensive experience in primary care and chronic disease management. He provides comprehensive, patient-centered care with a focus on prevention, accurate diagnosis, and long-term health management.

View Provider Profile

Related Post